IE41279L - Working up hydrazine solutions - Google Patents
Working up hydrazine solutionsInfo
- Publication number
- IE41279L IE41279L IE751670A IE167075A IE41279L IE 41279 L IE41279 L IE 41279L IE 751670 A IE751670 A IE 751670A IE 167075 A IE167075 A IE 167075A IE 41279 L IE41279 L IE 41279L
- Authority
- IE
- Ireland
- Prior art keywords
- ketazine
- hydrazone
- organic solvent
- hydrazine
- water
- Prior art date
Links
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 title abstract 8
- PFLUPZGCTVGDLV-UHFFFAOYSA-N acetone azine Chemical compound CC(C)=NN=C(C)C PFLUPZGCTVGDLV-UHFFFAOYSA-N 0.000 abstract 5
- 150000007857 hydrazones Chemical class 0.000 abstract 5
- 239000003960 organic solvent Substances 0.000 abstract 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 3
- 150000002576 ketones Chemical class 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000011260 aqueous acid Substances 0.000 abstract 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/16—Hydrazine; Salts thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C241/00—Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
- C07C241/02—Preparation of hydrazines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C249/00—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C249/16—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of hydrazones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In the production of hydrazine wherein aqueous ammonia is oxidized in the presence of a ketone to form an aqueous solution containing at least one of a hydrazone and a ketazine along with ammonia, the hydrazone and ketazine are concentrated and the hydrazone and ketazine are subsequently hydrolyzed to hydrazine and ketone, the improvement which comprises effecting the concentration of the hydrazone and ketazine by extracting the aqueous solution with a substantially water-immiscible organic solvent whereby the hydrazone and ketazine preferentially enter the water-immiscible solvent, and separating the water-immiscible solvent extract from the aqueous solution. The organic solvent is preferably a higher alcohol, a chlorinated hydrocarbon, benzene or a substitution product thereof. The organic solvent extract, in one or more stages, and optionally with addition of ketone, can be re-extracted with water, hydrolyzed with aqueous acid or subjected to distillation to separate the hydrazine values from the organic solvent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2436335A DE2436335A1 (en) | 1974-07-27 | 1974-07-27 | PROCESS FOR PROCESSING SYNTHESIS SOLUTIONS IN HYDRAZINE MANUFACTURING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE41279L true IE41279L (en) | 1976-01-27 |
| IE41279B1 IE41279B1 (en) | 1979-11-21 |
Family
ID=5921760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1670/75A IE41279B1 (en) | 1974-07-27 | 1975-07-25 | Working up synthesis solutions obtained in production of hydrazine |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4005179A (en) |
| JP (1) | JPS5137896A (en) |
| AT (1) | AT373851B (en) |
| BE (1) | BE831675A (en) |
| BR (1) | BR7504786A (en) |
| CH (1) | CH617909A5 (en) |
| DE (1) | DE2436335A1 (en) |
| DK (1) | DK340075A (en) |
| ES (1) | ES439671A1 (en) |
| FR (1) | FR2279665A1 (en) |
| GB (1) | GB1462340A (en) |
| IE (1) | IE41279B1 (en) |
| NL (1) | NL7508850A (en) |
| NO (1) | NO752507L (en) |
| SE (1) | SE7508442L (en) |
| ZA (1) | ZA754794B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2647444B1 (en) * | 1989-05-24 | 1991-07-26 | Atochem | |
| JP3962872B2 (en) * | 1995-08-14 | 2007-08-22 | 三菱瓦斯化学株式会社 | Method for synthesizing ketazine |
| FR2782717B1 (en) * | 1998-08-26 | 2000-09-29 | Atochem Elf Sa | PROCESS FOR THE MANUFACTURE OF HYDRAZINE HYDRATE FROM METHYL ETHYL CETONE AZINE |
| DE10254119A1 (en) | 2001-12-03 | 2003-06-18 | Bayer Ag | Extraction of aqueous ketazine solution uses aliphatic hydrocarbon extractant having specified boiling point at atmospheric pressure to extract ketazine solution having molar excess of ketone based on ketazine |
| JP5614105B2 (en) * | 2010-05-28 | 2014-10-29 | 三菱瓦斯化学株式会社 | Method for producing ketazine and hydrated hydrazine |
| CN101921213B (en) * | 2010-08-27 | 2013-07-10 | 黎明化工研究院 | Method for synthesizing ketazine by hydrogen peroxide oxidation method |
| CN104555953A (en) * | 2014-10-11 | 2015-04-29 | 重庆锦杉科技有限公司 | Preparation method of hydrazine hydrate |
| CN112179967A (en) * | 2020-09-30 | 2021-01-05 | 宜宾海丰和锐有限公司 | Online detection method for hydrazine hydrate in production process of ketazine process hydrazine hydrate |
| CN113984832B (en) * | 2021-10-13 | 2024-04-12 | 南京理工大学 | Method for rapidly detecting safety of hydrazine-containing post-treatment solution |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2830050A (en) * | 1955-02-15 | 1958-04-08 | Lakeside Lab Inc | Symmetrical substituted aminoalkylhydrazines and their salts |
| DE1095794B (en) * | 1956-11-28 | 1960-12-29 | Olin Mathieson | Extraction process for the dehydration of aqueous hydazine |
| NL246334A (en) * | 1958-12-16 | |||
| GB1137505A (en) * | 1965-04-23 | 1968-12-27 | Fisons Ind Chemicals Ltd | Process for the production of azines and hydrazine |
| GB1175839A (en) * | 1966-05-04 | 1969-12-23 | Fisons Ind Chemicals Ltd | Manufacture of Hydrazine Derivatives |
| GB1191630A (en) * | 1966-12-22 | 1970-05-13 | Fisons Ind Chemicals Ltd | Hydrazine Process |
| DE1965898A1 (en) * | 1968-08-29 | 1970-10-08 | Jenkins Jonathan Moubray | Process and apparatus for the production of hydrazine |
| DE2010123A1 (en) * | 1969-03-06 | 1970-09-17 | Fisons Industrial Chemicals Ltd., Loughborough, Leicestershire (Großbritannien) | Recovery of azines form reaction mixtures |
| DE2056357A1 (en) * | 1970-11-17 | 1972-05-18 | Farbenfabriken Bayer Ag, 5090 Leverkusen | Process for the preparation of reaction products from hydrazine and carbonyl compounds |
| FR2120517A5 (en) * | 1971-01-07 | 1972-08-18 | Ugine Kuhlmann |
-
1974
- 1974-07-27 DE DE2436335A patent/DE2436335A1/en not_active Withdrawn
-
1975
- 1975-07-11 NO NO752507A patent/NO752507L/no unknown
- 1975-07-18 US US05/597,263 patent/US4005179A/en not_active Expired - Lifetime
- 1975-07-23 GB GB3078975A patent/GB1462340A/en not_active Expired
- 1975-07-23 ES ES75439671A patent/ES439671A1/en not_active Expired
- 1975-07-24 BE BE158559A patent/BE831675A/en not_active IP Right Cessation
- 1975-07-24 SE SE7508442A patent/SE7508442L/en unknown
- 1975-07-24 NL NL7508850A patent/NL7508850A/en not_active Application Discontinuation
- 1975-07-25 CH CH978075A patent/CH617909A5/de not_active IP Right Cessation
- 1975-07-25 IE IE1670/75A patent/IE41279B1/en unknown
- 1975-07-25 JP JP50090325A patent/JPS5137896A/en active Pending
- 1975-07-25 FR FR7523362A patent/FR2279665A1/en active Granted
- 1975-07-25 DK DK340075A patent/DK340075A/en unknown
- 1975-07-25 ZA ZA00754794A patent/ZA754794B/en unknown
- 1975-07-25 AT AT0577575A patent/AT373851B/en not_active IP Right Cessation
- 1975-07-25 BR BR7504786*A patent/BR7504786A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK340075A (en) | 1976-01-28 |
| NL7508850A (en) | 1976-01-29 |
| AT373851B (en) | 1984-02-27 |
| GB1462340A (en) | 1977-01-26 |
| FR2279665B1 (en) | 1979-08-24 |
| ES439671A1 (en) | 1977-03-16 |
| SE7508442L (en) | 1976-01-28 |
| ATA577575A (en) | 1983-07-15 |
| NO752507L (en) | 1976-01-28 |
| US4005179A (en) | 1977-01-25 |
| BR7504786A (en) | 1976-07-06 |
| CH617909A5 (en) | 1980-06-30 |
| DE2436335A1 (en) | 1976-02-05 |
| FR2279665A1 (en) | 1976-02-20 |
| JPS5137896A (en) | 1976-03-30 |
| IE41279B1 (en) | 1979-11-21 |
| ZA754794B (en) | 1976-06-30 |
| AU8332075A (en) | 1977-01-27 |
| BE831675A (en) | 1976-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IE41279L (en) | Working up hydrazine solutions | |
| GB1209498A (en) | Process for drying methacrylic acid | |
| ES280459A1 (en) | A procedure for the extraction of metals from the aqueous solutions of your salts (Machine-translation by Google Translate, not legally binding) | |
| SE7604654L (en) | PROCEDURE FOR EXTRACTING ACTIC ACID FROM WEAK ETHIC ACID SOLUTIONS | |
| BG33008A3 (en) | Method for obtaining of nitrogen containing polysaccharides | |
| GB1404713A (en) | Hop extract process and product | |
| GB1360174A (en) | Method of recovering chemical values from a process waste effluent | |
| GB841323A (en) | Improvements in or relating to the manufacture of hydrogen peroxide | |
| GB1322444A (en) | Process for separating methacrolein from a gaseous mixture cont aining it | |
| GB1329815A (en) | Production of tertiary acetylenic glycols by reaction of acetylene with ketones | |
| GB1235634A (en) | Process for isolating acrylic acid from an aqueous crude acrylic acid | |
| GB1167487A (en) | Process for Isolating Acrylic Acid from Aqueous Crude Acid | |
| GB1357614A (en) | Purification of phosphoric acid | |
| GB1350819A (en) | Production of organic hydrogen peroxide solutions | |
| GB1456682A (en) | Phosphoric acid purification | |
| ES223347A1 (en) | Recovery of cyclohexanone oxime | |
| GB1210726A (en) | Continuous process for the extraction of phosphoric acid in the form of soluble phosphates | |
| GB870105A (en) | Improvements in the recovery of adipic acid from oxidation products of cyclohexane | |
| KR840002457A (en) | Oxygen reduction method in uranium recovery process | |
| GB1184407A (en) | Process for the Recovery of Glucose Oxidase | |
| NL7404407A (en) | ||
| GB1295235A (en) | ||
| GB1168835A (en) | Improvements in or relating to the production of Micro-Organisms | |
| SU1822107A1 (en) | Method of extractive separation of rare-earth elements | |
| GB1449460A (en) | Process for producing methacrylic acid |